Twenty-four books covering an array of firearm related genres. Some titles to include: "Trapdoor Springfield" by M.D. "Bud" Waite & B.D. Ernst, "London Gunmakers" by Nigel Brown, "Thompson The American Legend: The First Submachine Gun" by Tracie L. Hill, "British Single Shot Rifles, Volume 3: Jeffrey and the Trade Farquharsons" Volume 3 by Walter G. Winfer, and "The Mortimer Gunmakers, 1753-1923" by H. Lee Munson.